In eager mode, TensorFlow before versions 1.15.4, 2.0.3, 2.1.2, 2.2.1 and 2.3.1 does not set the session state. Hence, calling `tf.raw_ops.GetSessionHandle` or `tf.raw_ops.GetSessionHandleV2` results in a null pointer dereference In linked snippet, in eager mode, `ctx->session_state()` returns `nullptr`. Since code immediately dereferences this, we get a segmentation fault. The issue is patched in commit 9a133d73ae4b4664d22bd1aa6d654fec13c52ee1, and is released in TensorFlow versions 1.15.4, 2.0.3, 2.1.2, 2.2.1, or 2.3.1.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - In eager mode, TensorFlow before versions 1.15.4, 2.0.3, 2.1.2, 2.2.1 and 2.3.1 does not set the session
    state. Hence, calling `tf.raw_ops.GetSessionHandle` or `tf.raw_ops.GetSessionHandleV2` results in a null
    pointer dereference In linked snippet, in eager mode, `ctx->session_state()` returns `nullptr`. Since code
    immediately dereferences this, we get a segmentation fault. The issue is patched in commit
    9a133d73ae4b4664d22bd1aa6d654fec13c52ee1, and is released in TensorFlow versions 1.15.4, 2.0.3, 2.1.2,
    2.2.1, or 2.3.1. (CVE-2020-15204)

This update for tensorflow2 fixes the following issues :

  - updated to 2.1.2 with following fixes (boo#1177022) :

  - Fixes an undefined behavior causing a segfault in     tf.raw_ops.Switch (CVE-2020-15190)

  - Fixes three vulnerabilities in conversion to DLPack     format (CVE-2020-15191, CVE-2020-15192, CVE-2020-15193)

  - Fixes two vulnerabilities in SparseFillEmptyRowsGrad     (CVE-2020-15194, CVE-2020-15195)

  - Fixes an integer truncation vulnerability in code using     the work sharder API (CVE-2020-15202)

  - Fixes a format string vulnerability in     tf.strings.as_string (CVE-2020-15203)

  - Fixes segfault raised by calling session-only ops in     eager mode (CVE-2020-15204)

  - Fixes data leak and potential ASLR violation from     tf.raw_ops.StringNGrams (CVE-2020-15205)

  - Fixes segfaults caused by incomplete SavedModel     validation (CVE-2020-15206)

  - Fixes a data corruption due to a bug in negative     indexing support in TFLite (CVE-2020-15207)

  - Fixes a data corruption due to dimension mismatch in     TFLite (CVE-2020-15208)

  - Fixes several vulnerabilities in TFLite saved model     format (CVE-2020-15209, CVE-2020-15210, CVE-2020-15211)

ID	Name	Product	Family	Type	Severity
417997	SCA: security update for tensorflow, tensorflow-cpu, tensorflow-gpu (GHSA-q8gv-q7wr-9jf8)	Tenable Cloud Security	SCA Checks	Local	medium
417997	SCA: security update for tensorflow, tensorflow-cpu, tensorflow-gpu (GHSA-q8gv-q7wr-9jf8)	Tenable Self-Hosted Container Security	SCA Checks	Local	medium
142135	openSUSE Security Update : tensorflow2 (openSUSE-2020-1766)	Nessus	SuSE Local Security Checks	Local	critical

Detections

Analytics

CVE-2020-15204

medium

Tenable Plugins

medium

medium

critical